Xeon E5540 's Advantages
Higher base frequency (2.533GHz vs 2.5GHz)
Lower TDP (80W vs 335W)
Xeon w7 3565X 's Advantages
Released 15 years and 5 months late
Higher specification of memory (4800 vs 1066)
Newer PCIe version (5 vs 2)
Larger L3 cache size (82.5MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)